Free Sidebar Gadgets for Windows 11/10/8.1/7 Desktop

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Online Tone generator 2

⚠︎ You can damage your hearing or your speakers if you play tones at extreme volumes. People can’t hear sounds < 20 Hz and > 10,000 Hz very well. If you turn up the volume on your device to compensate, you could expose yourself to harmful sound levels and your speakers to harmful currents. To be safe, note the volume level that allows you to listen to a 1,000 Hz tone without discomfort and do not stray too far above this level, even if you can’t hear much – especially in the high range, where your hearing is the most fragile.
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Instructions

To play a constant tone, click Play or press Space.

To change the frequency, drag the slider or press ← → (arrow keys). To adjust the frequency by 1 Hz, use the buttons or press Shift + ← and Shift + →. To adjust the frequency by 0.01 Hz, press Ctrl + ← and Ctrl + →; to adjust it by 0.001 Hz, press Ctrl + Shift + ← and Ctrl + Shift+ → To halve/double the frequency (go down/up one octave), click ×½ and ×2.

To change the wave type from a sine wave (pure tone) to a square/triangle/sawtooth wave, click the button.

  • Sine: The amplitude of the waveform follows a trigonometric sine function with respect to time. Fundamental frequency or “pure tone”.
  • Square: Commonly used to represent digital information. Contains odd harmonics that decrease at -6dB/octave. Harmonics have a greater impact of timbre of the wave.
  • Triangle: Fundamental frequency joined by odd harmonics that decrease at -12dB/octave. Higher, richer and slightly louder than the sine wave.
  • Sawtooth: Also called a “ramp”. Found often in time bases for display scanning. Can be seen as the “front end” of a triangle wave and the “back end” of a square wave. Generates more overtones, with every harmonic present at gradually decreasing levels.

You can mix tones by opening the Online Tone Generator in several browser tabs.

What can I use this tone generator for?

Tuning instruments, science experiments (what’s the resonant frequency of this wineglass?), testing audio equipment (how low does my subwoofer go?), testing your hearing (what’s the highest frequency you can hear? are there frequencies you can hear in only one ear?).

Alzheimer’s disease. There is some early-stage scientific evidence that listening to a 40 Hz tone can reverse some of the molecular changes in the brains of Alzheimer’s patients. This is one of these things that sound too good to be true, but early results are very promising. (Note that this tone generator is not a medical device — I don’t guarantee anything!)

Also, you can try our Tone generator and Frequency Sweep Generator